Ketchup Red Glaze
Posted 17 November 2012 - 02:34 PM
Posted 18 November 2012 - 04:09 PM
Pic of Randy's red I mixed, cup and saucer, and Coyote Really Red bottles. Randy\'s Red.jpg 26.31KB 37 downloads Red Jars.jpg 30.85KB 35 downloads
Posted 19 November 2012 - 06:36 PM
Encapsulated mason stains will definitely get you bright red -- like those posted above -- but they always look "Crayola" to me. Add up to 10% or so and it's pretty hard to screw up since they're made to do what they say. Underglazes also will work in a pinch - Duncan "Really Red" underglaze is a good liquid form of red to add into your glaze or just use it over/under another.
Also, I've tested many commercial ^06/04 glazes (Like Duncan, Speedball, etc) at ^6 and many of them work just fine without any running (but always test first!!!!) since they're made so dependable and user friendly.
If you're looking for a reduction copper red at ^6, then that's different.
^6 Red to Green (reduction)
20 Neph Sye
^6 Berry Rust
7 Neph Sye
9 Bone Ash
If anyone has other ^6 reds (esp. Cu reds) - mind sharing?
Posted 20 November 2012 - 11:02 AM
Four ways to red
ka Studios Pottery
Posted 28 April 2015 - 12:39 PM
okay.. it has been so long since I have been here complaining about ketchup red not being red that I am not sure that this post will go out there somewhere BUT I need to tell someone that I just emptied my kiln with a whole load of ketchup red with glossy black over and black with ketchup red over. In my 20 years, I have never been so pleased with a glaze. Comes out almost black but with variation on raised areas. It doesn't leave my fnger prints, drips, messes, etc., just a beautiful shiney glaze. I just microwaved a piece and it didn't explode... sometimes life is just good!
Posted 28 April 2015 - 09:22 PM
Posted 28 April 2015 - 09:30 PM
In addition to recipe, do you use a special firing/cooling schedule for your kiln? That would be helpful, too, as iron reds do better with a controlled cooling and a hold at 1600F or so to promote crystal growth.
I've taken a cone 10 iron red (kaki) that came out brown and ran it through a bisque kiln firing . . . with good red results from the third firing.
Posted 29 April 2015 - 02:18 PM
I've been working with a version of Bailey's Red, modified for Cone 8, but not much ketchup color yet. I may be putting it on too thick. On the other hand, it makes a very useful overspray for some of the other glazes I'm working with.
Posted 30 April 2015 - 11:37 PM
thank you marcia for the recipe for faux celedon on Frost. i can't wait to try something with frost!!! i had heard that glazing it was problematic. thanks again
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